Condenser-pump regulator.



PATENTED APR. 30, 1907.

R. WIKANDBR. CONDENSER PUMP REGULATOR.

APPLICATION FILED JULY 24, 1905.

2 SHEETS-SHEET 1.

6. 6 Jig/04a ATTORNEY R. WIKAN DER.

CONDENSER PUMP REGULATOR.

APPLICATION FILED JULY 24, 1905.

2SHEETSSHEET Fig.3.

WITNESSES: INVENTUR BY ATITORNEY UNITED I STATES PATENT OFFICE.

RAGNAR WIKANDER, OF EDGEWOOD PARK, PENNSYLVANIA, ASSIGNUR TOWESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPO- RATION orPENNSYLVANIA.

CONDENSER-PUMP F lEGiULATQDRn Specification of Letters Patent.

Patented April 30, 1907.

11/) t, whom it may concern:

Be it known that LRAGNAR WIKANDER, a subject of the King of Sweden, anda resident of Edgewood Park, in the county of Allegheny and State ofPennsylvania, have invented a'new and useful Improvement inCondenser-Pump Regulators, of which the following is a specification.

My invention relates to the regulation of steam condenser pumps, andparticularly to means for regulating the amount of water,

supplied to condensers which are adapted for use with steam drivingengines.

The object of my invention is to provide means for automatically varyingthe amount of water supplied to condensers which are used in connectionwith steam driving engines, that shall be simple in arrangementand-construction, effective in operation and that shall vary the amountof water supplied as the load and the steam consumption of the enginevary. 7

- The amount of water sup liedto steam engine condensers has usual ybeen approximately constant and entirely independent of the steamconsumption of the engine. Constant speedelectric motors have often beenemployed for driving condenser pumps, and in some instances,thermostatic instruments have been introduced to vary the amount ofwater in proportion to the temperature in the condenser. Suchthermostatic regulators have usually been of expensive and intricateconstruction or unsatisfactory in operation, so that their a plicationhas been limited. It is evident t fiat ifwater is supplied to acondenser at a constant rate adequate forcondensation under conditionsof maximum speed consumption, the amount supplied wil often exceed theamount necessary under working conditions where the engine is operatedunder variable load.

When steam engines are employed for driving dynamo-electric machinery,the steam consumption of the engine varies with the current deliveredfrom the electric ma chine, so that, by varying the speed of the motorthat drives the condenser pump as the generated electric current isvaried, the amount of water supplied to the condenser may beautomatically kept substantially proportional at all times to the steamconsumption of the engine.

I I My invention is hereinafter illustrated and l described inconnection with an electric genl crating system as a convenient meansfor effecting a desired result, but is not restricted to any specificsystem and may be applied to a steam engine adapted for variousloads.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a diagrammatic view of a system of condenser pump regulationas applied to an electric generating system and constructed inaccordance therewith. Fig. 2 is a diagrammatic view of the circuitconnec tions for a system embodying a direct current electric generatingunit, and Figs. 3, 4 and 5 are similar views of the circuit connectionsfor systems embodying, respectively, two, three and one-phasegenerators.

Referring to Fig. 1, a steam driving engine 1 is supplied with steamthrough a pipe 2 and exhausts through a pipe 3 into a condenser 4 whichis supplied with condensing water through a pipe 5 by a pump 6 which isdriven by an electric driving motor 7. The engine 1 is adapted to drivean electric generator 8, which may supply current energy for variousloads, including the driving motor 7. The electrical connections for thesystem are disclosed in the diagrams of Figs. 2, 3, 4 and 5.

Referring to Fig. 2, a direct current, compound wound generator 8comprising an armature 9, a shunt field magnet winding 10 and a seriesfield magnet winding 11 supplies energy to an external circuit l2-13.The direct current drivingmotor 7 which is connected to the pump 6 issupplied with energy from the line 12-13, across which its armature 14and shunt field magnet winding 15 are connected in the usual manner. Themotor is provided with a second field magnet winding 16, which isconnected in series with the interrupted line conductor 13, so that theentire current load on the generator passes therethrough and acts inopposition to the shunt field magnet winding 15. By proper regulation ofthe number of turns on the two field magnet windings 15 and 16, the seed of the motor 7 may be increased as the oad on the generatorincreases and decreased when the load on the generator decreases, sothat the amount of water delivered to the condenser 1 by the pump 6willvary, within predetermined limits, as the load on the generaingcurrent energy is supplied from a generator 8 varies. and, therefore,will be kept I .tor to'an external circuit 4647,- and to a roughly'roportional to the steam consumpi condenser therefor and an electricgenerator tion of t e engine 1. single-phase, commutator motor 48 oneter- Referring to Fig. 3, a two-phase alternatminal of which isconnected to the line co'n- 5 ing current generator 17 is substitutedfor the ductor ,46 from which a circuit is completed 70 direct currentgenerator 8 of Fig. 2 and an 2.1- through a series field magnet winding49 and ternating current commutator motor. 18 a movable contact memberto an autotakes the place of the driving motor 7. The transformer 51.The movable contact mem-' two-phase generator 17 supplies energy to ber50 is actuated in 0 position to a spring 52 the external circuits 19-20and 21--22 to by an armature 53 0 an electro-magnet 54, 7

which the motor 18 is connected, the field that is connected in serieswith the line conmagnet winding 23 of the motor being conductor 47, toengage any one of a plurality of nected across the circuit 21 22, whichmay contact members which are connected to be designated as phase a, andthe armature a series of taps in the auto-transformer 51 24 of the motorbeing supplied with energy that is connected across the line 4647. Thefrom circuit 19-20, which may. be desigcurrent taken from the generatorpasses y nated as phase Z). A magnetizing winding 25 through the windingof the electro-magnet 54 of an electro-magnet 26 is connected in seriesand automatically varies the voltage applied with the conductor 19, andan auto-transto the motor and consequently its speed by former 27 isconnected across the supply line connecting the movable contact arm todif- 19-20. One terminal of the armature 24 of ferent transformer taps.the motor 18 is connected to the line conduc- Variations in circuitconnections and simitor 20 and the otherterminal is connected to larmeans for obtaining like results which do amovable contact arm 28whichengagesaplunot de art from the spirit of my'invention rality ofcontact members 29 that are electricare inc uded within its scope. allyconnected to various taps in the auto- I claim as my inventionitransformer 27 and is automatically actuated, 1. The combination with asteam driv-ing in opposition toa spring 30, to engage the variengine anda condenser therefor, of, a pump ous contact members 29, by an armature31 for supplying Water. to said condenser, an ofthe electro-magnet, 26.In this way, the electric motor fordr'iving said pump and a 5 action ofthe electro-magnet 26 regulates the speed-governingmeans for said motorthat is s eed of the motor and is dependent upon directly dependent uponthe load carried-by the current in the external circuit of the gentheengine. .7 erator, so that the voltage applied to the mo- 2. Thecombination with a dynamo-elector is varied with the load, on thegenerator. tricgenerator, a steam driving engine there- IOO Referring toFig. 4, a three-phase alternatfor, a condenser and a supply pump forsaid ing current electric generator 32 corresponds engine, and anelectric driving motor forsaid to the generators 8 and 17 of Figs. 2 and3 pump, of means dependent upon the current and supplies energy to theexternal circuit om said generator forregulating the speed 33, 34 and35, which constitute, respectively, of the driving motor.

bases (1, b and c. A motor 36, which is simi- 3. The combination with anelectric generar to the motor 18 of Fig. 3, is used to drive a ator, asteam driving engine therefor and an condenser pump and is supplied withenergy electric motordriven condenser ump. for from the external circuitof the ,alternating said engine, of means for varying t eamount currentgenerator 32. A circuit is comof water su plied to a condenser by said.1 1o pleted from the conductor 33, through a field pump as the oaddelivered by said generator magnet winding 37 of the motor 36 and a isvaried; movable contact arm 38, which engages any 4. T hecombinationwith an electric generone of a plurality of contact members 39 thatator, a steaml drivingqengine therefor, a conare connected to varioustaps near the middenser andsupply pump for said engine, and I I5dlepoint of an auto-transformer 40, whichis an electric driving motorfor said pump that connected across lines 3435'. A circuit is issupplied with energy from said generator, also com leted "from the lineconductor 35 of means for varying the speed of'the driving throu h t earmature of the motor 36 and a motor as the energydelivered from saidgenermovable contact arm 41 which engages any ator varies. I20 one of aplurality of contact members 42 that 5'. The combination with adynamo-elem are connected to various taps in the autotric machine,asteam driving engine therefor, transformer 40. The movable contact arma condenser-and-supply pump for said engine, 41 is actuated inopposition to a spring 41 and-an electric driving motor for said pump,by an armature 43 of an electro-magnet 44, of means for varying theamount of water which is connected in series with the line'consuppliedto said, condenser. as the ener de ductor 35 and automatically variesthe vollivered from said dynamo-electric machme is tage applied. to themotor armature as the varied. i 1 load on the generator is varied. 6.The combination with a steam engine, a

Referring to Fig. 5, single-phase alterriat- I30 driven thereby, oimeans for Varying the amount of Watersupplied to said condenser as thecurrent delivered by said generator is varied. v

7, The combination With e cinect cun' nt electric generator, a steamdriving engine thei'efoi", 'a condenser, and s: supply pump therefor, ofa direct current, compound Wound, electric driving motor for said pumphaving means for Varying its speeii as the geneietoi" load Varies.

8. The combination with 2; direct current electric generator, a steamcliiving therefor, a condenser and supply said engine and a cliiectcurrent, cone nnc Wound, electric driving motor for sin 911131,, ofmeans for varying the speed oi the motor substantially in proportion tothe steam con sumption of the engine that comprises shunt field magnetWinding connected opposition to a field magnet Winding serieswith theexternal circnitoi the u current generator.

9. The combination-With a engi' electric generator cli'iven thereby ansa c denser therefoif, of means for yeryine amount of Wete? suppliedthrough i motor-driven pump to said concienser 1 s loan delivered bysaid generatoris anneal comprises e field inding fol" said 1110i101 thatis series-connected with the exteinsl circuit of said generator.

The combination with a steam engine,

en eiectiic generator driven thereby,

contienser thereioi supplied With Water by en eiectiic HEO'tOf-diiVSIQcondense? pump, of means toi-yerying the amount of Water supsaidcondenses as the amountoi Ginelivered o sen generates varies,

comprises a fielo Winding for said. niotos con have hereunto

